甘肃某低品位钒钛磁铁矿工艺矿物学研究

Research on Process Mineralogy for a Low-grade Vanadium Titanomagnetite in Gansu Province

对甘肃某超低品位钒钛磁铁矿样品采用化学多项分析、X荧光光谱分析、显微镜下鉴定及MLA矿物自动分析仪等手段进行了化学和矿物特性研究,并进行了选矿试验。结果表明,矿石中金属矿物占9.06%,非金属矿物广泛存在且种类复杂;磁性铁和钛铁矿含量较低,磁铁矿粒度较细且与钛铁矿共生关系较为紧密,钛铁矿及其集合体粒度相对较粗;主要非金属矿物橄榄石、角闪石、辉石和长石等粒度较粗。论文进行了选矿试验以证实工艺矿物学研究结果。本研究为该矿区钒钛磁铁矿评价以及综合利用提供了重要参考依据。

The chemical and mineral characteristics of a low-grade vanadium titano-magnetite in Subei of Gansu province had been studied by the ways such as X-fluorescence spectrophotometer and chemical multielement analysis and microscopic method and MLA mineral automatic analysis,and beneficiation tests of the samples had been accomplished.The research results showed the content of metallic minerals was much less than non-metallic minerals and the percentage of metallic minerals in the ore was 9.06%and a wide range of non-metallic minerals in the ore widely existed.The content of magnetic iron minerals and ilmenite was low and the granularities of magnetite mineral grain was far thinner than ilmenite and the coexistence relation between magnetite and ilmenite was very close-knit.The grain dianeters of main nonmetallic minerals were thick such as olivine,hornblende,pyroxene and feldspar,and the beneficiation test results confirmed the process mineralogy research results of the sample.The important reference frame had been provided in this research which could be used to evaluate the vanadium titano-magnetite deposit.